| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Linus Torvalds (pre-git) | 2200 | 93.42% | 1 | 5.56% |
| Willem Riede | 58 | 2.46% | 3 | 16.67% |
| Al Viro | 41 | 1.74% | 2 | 11.11% |
| Linus Torvalds | 24 | 1.02% | 3 | 16.67% |
| FUJITA Tomonori | 9 | 0.38% | 1 | 5.56% |
| James Bottomley | 8 | 0.34% | 2 | 11.11% |
| Douglas Gilbert | 5 | 0.21% | 1 | 5.56% |
| Matthias Kaehlcke | 4 | 0.17% | 1 | 5.56% |
| Christoph Hellwig | 4 | 0.17% | 2 | 11.11% |
| Greg Kroah-Hartman | 1 | 0.04% | 1 | 5.56% |
| Lucas De Marchi | 1 | 0.04% | 1 | 5.56% |
| Total | 2355 | 18 |
/* SPDX-License-Identifier: GPL-2.0 */ /* * $Header: /cvsroot/osst/Driver/osst.h,v 1.16 2005/01/01 21:13:35 wriede Exp $ */ #include <asm/byteorder.h> #include <linux/completion.h> #include <linux/mutex.h> /* FIXME - rename and use the following two types or delete them! * and the types really should go to st.h anyway... * INQUIRY packet command - Data Format (From Table 6-8 of QIC-157C) */ typedef struct { unsigned device_type :5; /* Peripheral Device Type */ unsigned reserved0_765 :3; /* Peripheral Qualifier - Reserved */ unsigned reserved1_6t0 :7; /* Reserved */ unsigned rmb :1; /* Removable Medium Bit */ unsigned ansi_version :3; /* ANSI Version */ unsigned ecma_version :3; /* ECMA Version */ unsigned iso_version :2; /* ISO Version */ unsigned response_format :4; /* Response Data Format */ unsigned reserved3_45 :2; /* Reserved */ unsigned reserved3_6 :1; /* TrmIOP - Reserved */ unsigned reserved3_7 :1; /* AENC - Reserved */ u8 additional_length; /* Additional Length (total_length-4) */ u8 rsv5, rsv6, rsv7; /* Reserved */ u8 vendor_id[8]; /* Vendor Identification */ u8 product_id[16]; /* Product Identification */ u8 revision_level[4]; /* Revision Level */ u8 vendor_specific[20]; /* Vendor Specific - Optional */ u8 reserved56t95[40]; /* Reserved - Optional */ /* Additional information may be returned */ } idetape_inquiry_result_t; /* * READ POSITION packet command - Data Format (From Table 6-57) */ typedef struct { unsigned reserved0_10 :2; /* Reserved */ unsigned bpu :1; /* Block Position Unknown */ unsigned reserved0_543 :3; /* Reserved */ unsigned eop :1; /* End Of Partition */ unsigned bop :1; /* Beginning Of Partition */ u8 partition; /* Partition Number */ u8 reserved2, reserved3; /* Reserved */ u32 first_block; /* First Block Location */ u32 last_block; /* Last Block Location (Optional) */ u8 reserved12; /* Reserved */ u8 blocks_in_buffer[3]; /* Blocks In Buffer - (Optional) */ u32 bytes_in_buffer; /* Bytes In Buffer (Optional) */ } idetape_read_position_result_t; /* * Follows structures which are related to the SELECT SENSE / MODE SENSE * packet commands. */ #define COMPRESSION_PAGE 0x0f #define COMPRESSION_PAGE_LENGTH 16 #define CAPABILITIES_PAGE 0x2a #define CAPABILITIES_PAGE_LENGTH 20 #define TAPE_PARAMTR_PAGE 0x2b #define TAPE_PARAMTR_PAGE_LENGTH 16 #define NUMBER_RETRIES_PAGE 0x2f #define NUMBER_RETRIES_PAGE_LENGTH 4 #define BLOCK_SIZE_PAGE 0x30 #define BLOCK_SIZE_PAGE_LENGTH 4 #define BUFFER_FILLING_PAGE 0x33 #define BUFFER_FILLING_PAGE_LENGTH 4 #define VENDOR_IDENT_PAGE 0x36 #define VENDOR_IDENT_PAGE_LENGTH 8 #define LOCATE_STATUS_PAGE 0x37 #define LOCATE_STATUS_PAGE_LENGTH 0 #define MODE_HEADER_LENGTH 4 /* * REQUEST SENSE packet command result - Data Format. */ typedef struct { unsigned error_code :7; /* Current of deferred errors */ unsigned valid :1; /* The information field conforms to QIC-157C */ u8 reserved1 :8; /* Segment Number - Reserved */ unsigned sense_key :4; /* Sense Key */ unsigned reserved2_4 :1; /* Reserved */ unsigned ili :1; /* Incorrect Length Indicator */ unsigned eom :1; /* End Of Medium */ unsigned filemark :1; /* Filemark */ u32 information __attribute__ ((packed)); u8 asl; /* Additional sense length (n-7) */ u32 command_specific; /* Additional command specific information */ u8 asc; /* Additional Sense Code */ u8 ascq; /* Additional Sense Code Qualifier */ u8 replaceable_unit_code; /* Field Replaceable Unit Code */ unsigned sk_specific1 :7; /* Sense Key Specific */ unsigned sksv :1; /* Sense Key Specific information is valid */ u8 sk_specific2; /* Sense Key Specific */ u8 sk_specific3; /* Sense Key Specific */ u8 pad[2]; /* Padding to 20 bytes */ } idetape_request_sense_result_t; /* * Mode Parameter Header for the MODE SENSE packet command */ typedef struct { u8 mode_data_length; /* Length of the following data transfer */ u8 medium_type; /* Medium Type */ u8 dsp; /* Device Specific Parameter */ u8 bdl; /* Block Descriptor Length */ } osst_mode_parameter_header_t; /* * Mode Parameter Block Descriptor the MODE SENSE packet command * * Support for block descriptors is optional. */ typedef struct { u8 density_code; /* Medium density code */ u8 blocks[3]; /* Number of blocks */ u8 reserved4; /* Reserved */ u8 length[3]; /* Block Length */ } osst_parameter_block_descriptor_t; /* * The Data Compression Page, as returned by the MODE SENSE packet command. */ typedef struct { #if defined(__BIG_ENDIAN_BITFIELD) unsigned ps :1; unsigned reserved0 :1; /* Reserved */ unsigned page_code :6; /* Page Code - Should be 0xf */ #elif defined(__LITTLE_ENDIAN_BITFIELD) unsigned page_code :6; /* Page Code - Should be 0xf */ unsigned reserved0 :1; /* Reserved */ unsigned ps :1; #else #error "Please fix <asm/byteorder.h>" #endif u8 page_length; /* Page Length - Should be 14 */ #if defined(__BIG_ENDIAN_BITFIELD) unsigned dce :1; /* Data Compression Enable */ unsigned dcc :1; /* Data Compression Capable */ unsigned reserved2 :6; /* Reserved */ #elif defined(__LITTLE_ENDIAN_BITFIELD) unsigned reserved2 :6; /* Reserved */ unsigned dcc :1; /* Data Compression Capable */ unsigned dce :1; /* Data Compression Enable */ #else #error "Please fix <asm/byteorder.h>" #endif #if defined(__BIG_ENDIAN_BITFIELD) unsigned dde :1; /* Data Decompression Enable */ unsigned red :2; /* Report Exception on Decompression */ unsigned reserved3 :5; /* Reserved */ #elif defined(__LITTLE_ENDIAN_BITFIELD) unsigned reserved3 :5; /* Reserved */ unsigned red :2; /* Report Exception on Decompression */ unsigned dde :1; /* Data Decompression Enable */ #else #error "Please fix <asm/byteorder.h>" #endif u32 ca; /* Compression Algorithm */ u32 da; /* Decompression Algorithm */ u8 reserved[4]; /* Reserved */ } osst_data_compression_page_t; /* * The Medium Partition Page, as returned by the MODE SENSE packet command. */ typedef struct { #if defined(__BIG_ENDIAN_BITFIELD) unsigned ps :1; unsigned reserved1_6 :1; /* Reserved */ unsigned page_code :6; /* Page Code - Should be 0x11 */ #elif defined(__LITTLE_ENDIAN_BITFIELD) unsigned page_code :6; /* Page Code - Should be 0x11 */ unsigned reserved1_6 :1; /* Reserved */ unsigned ps :1; #else #error "Please fix <asm/byteorder.h>" #endif u8 page_length; /* Page Length - Should be 6 */ u8 map; /* Maximum Additional Partitions - Should be 0 */ u8 apd; /* Additional Partitions Defined - Should be 0 */ #if defined(__BIG_ENDIAN_BITFIELD) unsigned fdp :1; /* Fixed Data Partitions */ unsigned sdp :1; /* Should be 0 */ unsigned idp :1; /* Should be 0 */ unsigned psum :2; /* Should be 0 */ unsigned reserved4_012 :3; /* Reserved */ #elif defined(__LITTLE_ENDIAN_BITFIELD) unsigned reserved4_012 :3; /* Reserved */ unsigned psum :2; /* Should be 0 */ unsigned idp :1; /* Should be 0 */ unsigned sdp :1; /* Should be 0 */ unsigned fdp :1; /* Fixed Data Partitions */ #else #error "Please fix <asm/byteorder.h>" #endif u8 mfr; /* Medium Format Recognition */ u8 reserved[2]; /* Reserved */ } osst_medium_partition_page_t; /* * Capabilities and Mechanical Status Page */ typedef struct { #if defined(__BIG_ENDIAN_BITFIELD) unsigned reserved1_67 :2; unsigned page_code :6; /* Page code - Should be 0x2a */ #elif defined(__LITTLE_ENDIAN_BITFIELD) unsigned page_code :6; /* Page code - Should be 0x2a */ unsigned reserved1_67 :2; #else #error "Please fix <asm/byteorder.h>" #endif u8 page_length; /* Page Length - Should be 0x12 */ u8 reserved2, reserved3; #if defined(__BIG_ENDIAN_BITFIELD) unsigned reserved4_67 :2; unsigned sprev :1; /* Supports SPACE in the reverse direction */ unsigned reserved4_1234 :4; unsigned ro :1; /* Read Only Mode */ #elif defined(__LITTLE_ENDIAN_BITFIELD) unsigned ro :1; /* Read Only Mode */ unsigned reserved4_1234 :4; unsigned sprev :1; /* Supports SPACE in the reverse direction */ unsigned reserved4_67 :2; #else #error "Please fix <asm/byteorder.h>" #endif #if defined(__BIG_ENDIAN_BITFIELD) unsigned reserved5_67 :2; unsigned qfa :1; /* Supports the QFA two partition formats */ unsigned reserved5_4 :1; unsigned efmt :1; /* Supports ERASE command initiated formatting */ unsigned reserved5_012 :3; #elif defined(__LITTLE_ENDIAN_BITFIELD) unsigned reserved5_012 :3; unsigned efmt :1; /* Supports ERASE command initiated formatting */ unsigned reserved5_4 :1; unsigned qfa :1; /* Supports the QFA two partition formats */ unsigned reserved5_67 :2; #else #error "Please fix <asm/byteorder.h>" #endif #if defined(__BIG_ENDIAN_BITFIELD) unsigned cmprs :1; /* Supports data compression */ unsigned ecc :1; /* Supports error correction */ unsigned reserved6_45 :2; /* Reserved */ unsigned eject :1; /* The device can eject the volume */ unsigned prevent :1; /* The device defaults in the prevent state after power up */ unsigned locked :1; /* The volume is locked */ unsigned lock :1; /* Supports locking the volume */ #elif defined(__LITTLE_ENDIAN_BITFIELD) unsigned lock :1; /* Supports locking the volume */ unsigned locked :1; /* The volume is locked */ unsigned prevent :1; /* The device defaults in the prevent state after power up */ unsigned eject :1; /* The device can eject the volume */ unsigned reserved6_45 :2; /* Reserved */ unsigned ecc :1; /* Supports error correction */ unsigned cmprs :1; /* Supports data compression */ #else #error "Please fix <asm/byteorder.h>" #endif #if defined(__BIG_ENDIAN_BITFIELD) unsigned blk32768 :1; /* slowb - the device restricts the byte count for PIO */ /* transfers for slow buffer memory ??? */ /* Also 32768 block size in some cases */ unsigned reserved7_3_6 :4; unsigned blk1024 :1; /* Supports 1024 bytes block size */ unsigned blk512 :1; /* Supports 512 bytes block size */ unsigned reserved7_0 :1; #elif defined(__LITTLE_ENDIAN_BITFIELD) unsigned reserved7_0 :1; unsigned blk512 :1; /* Supports 512 bytes block size */ unsigned blk1024 :1; /* Supports 1024 bytes block size */ unsigned reserved7_3_6 :4; unsigned blk32768 :1; /* slowb - the device restricts the byte count for PIO */ /* transfers for slow buffer memory ??? */ /* Also 32768 block size in some cases */ #else #error "Please fix <asm/byteorder.h>" #endif __be16 max_speed; /* Maximum speed supported in KBps */ u8 reserved10, reserved11; __be16 ctl; /* Continuous Transfer Limit in blocks */ __be16 speed; /* Current Speed, in KBps */ __be16 buffer_size; /* Buffer Size, in 512 bytes */ u8 reserved18, reserved19; } osst_capabilities_page_t; /* * Block Size Page */ typedef struct { #if defined(__BIG_ENDIAN_BITFIELD) unsigned ps :1; unsigned reserved1_6 :1; unsigned page_code :6; /* Page code - Should be 0x30 */ #elif defined(__LITTLE_ENDIAN_BITFIELD) unsigned page_code :6; /* Page code - Should be 0x30 */ unsigned reserved1_6 :1; unsigned ps :1; #else #error "Please fix <asm/byteorder.h>" #endif u8 page_length; /* Page Length - Should be 2 */ u8 reserved2; #if defined(__BIG_ENDIAN_BITFIELD) unsigned one :1; unsigned reserved2_6 :1; unsigned record32_5 :1; unsigned record32 :1; unsigned reserved2_23 :2; unsigned play32_5 :1; unsigned play32 :1; #elif defined(__LITTLE_ENDIAN_BITFIELD) unsigned play32 :1; unsigned play32_5 :1; unsigned reserved2_23 :2; unsigned record32 :1; unsigned record32_5 :1; unsigned reserved2_6 :1; unsigned one :1; #else #error "Please fix <asm/byteorder.h>" #endif } osst_block_size_page_t; /* * Tape Parameters Page */ typedef struct { #if defined(__BIG_ENDIAN_BITFIELD) unsigned ps :1; unsigned reserved1_6 :1; unsigned page_code :6; /* Page code - Should be 0x2b */ #elif defined(__LITTLE_ENDIAN_BITFIELD) unsigned page_code :6; /* Page code - Should be 0x2b */ unsigned reserved1_6 :1; unsigned ps :1; #else #error "Please fix <asm/byteorder.h>" #endif u8 reserved2; u8 density; u8 reserved3,reserved4; __be16 segtrk; __be16 trks; u8 reserved5,reserved6,reserved7,reserved8,reserved9,reserved10; } osst_tape_paramtr_page_t; /* OnStream definitions */ #define OS_CONFIG_PARTITION (0xff) #define OS_DATA_PARTITION (0) #define OS_PARTITION_VERSION (1) /* * partition */ typedef struct os_partition_s { __u8 partition_num; __u8 par_desc_ver; __be16 wrt_pass_cntr; __be32 first_frame_ppos; __be32 last_frame_ppos; __be32 eod_frame_ppos; } os_partition_t; /* * DAT entry */ typedef struct os_dat_entry_s { __be32 blk_sz; __be16 blk_cnt; __u8 flags; __u8 reserved; } os_dat_entry_t; /* * DAT */ #define OS_DAT_FLAGS_DATA (0xc) #define OS_DAT_FLAGS_MARK (0x1) typedef struct os_dat_s { __u8 dat_sz; __u8 reserved1; __u8 entry_cnt; __u8 reserved3; os_dat_entry_t dat_list[16]; } os_dat_t; /* * Frame types */ #define OS_FRAME_TYPE_FILL (0) #define OS_FRAME_TYPE_EOD (1 << 0) #define OS_FRAME_TYPE_MARKER (1 << 1) #define OS_FRAME_TYPE_HEADER (1 << 3) #define OS_FRAME_TYPE_DATA (1 << 7) /* * AUX */ typedef struct os_aux_s { __be32 format_id; /* hardware compatibility AUX is based on */ char application_sig[4]; /* driver used to write this media */ __be32 hdwr; /* reserved */ __be32 update_frame_cntr; /* for configuration frame */ __u8 frame_type; __u8 frame_type_reserved; __u8 reserved_18_19[2]; os_partition_t partition; __u8 reserved_36_43[8]; __be32 frame_seq_num; __be32 logical_blk_num_high; __be32 logical_blk_num; os_dat_t dat; __u8 reserved188_191[4]; __be32 filemark_cnt; __be32 phys_fm; __be32 last_mark_ppos; __u8 reserved204_223[20]; /* * __u8 app_specific[32]; * * Linux specific fields: */ __be32 next_mark_ppos; /* when known, points to next marker */ __be32 last_mark_lbn; /* storing log_blk_num of last mark is extends ADR spec */ __u8 linux_specific[24]; __u8 reserved_256_511[256]; } os_aux_t; #define OS_FM_TAB_MAX 1024 typedef struct os_fm_tab_s { __u8 fm_part_num; __u8 reserved_1; __u8 fm_tab_ent_sz; __u8 reserved_3; __be16 fm_tab_ent_cnt; __u8 reserved6_15[10]; __be32 fm_tab_ent[OS_FM_TAB_MAX]; } os_fm_tab_t; typedef struct os_ext_trk_ey_s { __u8 et_part_num; __u8 fmt; __be16 fm_tab_off; __u8 reserved4_7[4]; __be32 last_hlb_hi; __be32 last_hlb; __be32 last_pp; __u8 reserved20_31[12]; } os_ext_trk_ey_t; typedef struct os_ext_trk_tb_s { __u8 nr_stream_part; __u8 reserved_1; __u8 et_ent_sz; __u8 reserved3_15[13]; os_ext_trk_ey_t dat_ext_trk_ey; os_ext_trk_ey_t qfa_ext_trk_ey; } os_ext_trk_tb_t; typedef struct os_header_s { char ident_str[8]; __u8 major_rev; __u8 minor_rev; __be16 ext_trk_tb_off; __u8 reserved12_15[4]; __u8 pt_par_num; __u8 pt_reserved1_3[3]; os_partition_t partition[16]; __be32 cfg_col_width; __be32 dat_col_width; __be32 qfa_col_width; __u8 cartridge[16]; __u8 reserved304_511[208]; __be32 old_filemark_list[16680/4]; /* in ADR 1.4 __u8 track_table[16680] */ os_ext_trk_tb_t ext_track_tb; __u8 reserved17272_17735[464]; os_fm_tab_t dat_fm_tab; os_fm_tab_t qfa_fm_tab; __u8 reserved25960_32767[6808]; } os_header_t; /* * OnStream ADRL frame */ #define OS_FRAME_SIZE (32 * 1024 + 512) #define OS_DATA_SIZE (32 * 1024) #define OS_AUX_SIZE (512) //#define OSST_MAX_SG 2 /* The OnStream tape buffer descriptor. */ struct osst_buffer { unsigned char in_use; unsigned char dma; /* DMA-able buffer */ int buffer_size; int buffer_blocks; int buffer_bytes; int read_pointer; int writing; int midlevel_result; int syscall_result; struct osst_request *last_SRpnt; struct st_cmdstatus cmdstat; struct rq_map_data map_data; unsigned char *b_data; os_aux_t *aux; /* onstream AUX structure at end of each block */ unsigned short use_sg; /* zero or number of s/g segments for this adapter */ unsigned short sg_segs; /* number of segments in s/g list */ unsigned short orig_sg_segs; /* number of segments allocated at first try */ struct scatterlist sg[1]; /* MUST BE last item */ } ; /* The OnStream tape drive descriptor */ struct osst_tape { struct scsi_driver *driver; unsigned capacity; struct scsi_device *device; struct mutex lock; /* for serialization */ struct completion wait; /* for SCSI commands */ struct osst_buffer * buffer; /* Drive characteristics */ unsigned char omit_blklims; unsigned char do_auto_lock; unsigned char can_bsr; unsigned char can_partitions; unsigned char two_fm; unsigned char fast_mteom; unsigned char restr_dma; unsigned char scsi2_logical; unsigned char default_drvbuffer; /* 0xff = don't touch, value 3 bits */ unsigned char pos_unknown; /* after reset position unknown */ int write_threshold; int timeout; /* timeout for normal commands */ int long_timeout; /* timeout for commands known to take long time*/ /* Mode characteristics */ struct st_modedef modes[ST_NBR_MODES]; int current_mode; /* Status variables */ int partition; int new_partition; int nbr_partitions; /* zero until partition support enabled */ struct st_partstat ps[ST_NBR_PARTITIONS]; unsigned char dirty; unsigned char ready; unsigned char write_prot; unsigned char drv_write_prot; unsigned char in_use; unsigned char blksize_changed; unsigned char density_changed; unsigned char compression_changed; unsigned char drv_buffer; unsigned char density; unsigned char door_locked; unsigned char rew_at_close; unsigned char inited; int block_size; int min_block; int max_block; int recover_count; /* from tape opening */ int abort_count; int write_count; int read_count; int recover_erreg; /* from last status call */ /* * OnStream specific data */ int os_fw_rev; /* the firmware revision * 10000 */ unsigned char raw; /* flag OnStream raw access (32.5KB block size) */ unsigned char poll; /* flag that this drive needs polling (IDE|firmware) */ unsigned char frame_in_buffer; /* flag that the frame as per frame_seq_number * has been read into STp->buffer and is valid */ int frame_seq_number; /* logical frame number */ int logical_blk_num; /* logical block number */ unsigned first_frame_position; /* physical frame to be transferred to/from host */ unsigned last_frame_position; /* physical frame to be transferd to/from tape */ int cur_frames; /* current number of frames in internal buffer */ int max_frames; /* max number of frames in internal buffer */ char application_sig[5]; /* application signature */ unsigned char fast_open; /* flag that reminds us we didn't check headers at open */ unsigned short wrt_pass_cntr; /* write pass counter */ int update_frame_cntr; /* update frame counter */ int onstream_write_error; /* write error recovery active */ int header_ok; /* header frame verified ok */ int linux_media; /* reading linux-specifc media */ int linux_media_version; os_header_t * header_cache; /* cache is kept for filemark positions */ int filemark_cnt; int first_mark_ppos; int last_mark_ppos; int last_mark_lbn; /* storing log_blk_num of last mark is extends ADR spec */ int first_data_ppos; int eod_frame_ppos; int eod_frame_lfa; int write_type; /* used in write error recovery */ int read_error_frame; /* used in read error recovery */ unsigned long cmd_start_time; unsigned long max_cmd_time; #if DEBUG unsigned char write_pending; int nbr_finished; int nbr_waits; unsigned char last_cmnd[6]; unsigned char last_sense[16]; #endif struct gendisk *drive; } ; /* scsi tape command */ struct osst_request { unsigned char cmd[MAX_COMMAND_SIZE]; unsigned char sense[SCSI_SENSE_BUFFERSIZE]; int result; struct osst_tape *stp; struct completion *waiting; struct bio *bio; }; /* Values of write_type */ #define OS_WRITE_DATA 0 #define OS_WRITE_EOD 1 #define OS_WRITE_NEW_MARK 2 #define OS_WRITE_LAST_MARK 3 #define OS_WRITE_HEADER 4 #define OS_WRITE_FILLER 5 /* Additional rw state */ #define OS_WRITING_COMPLETE 3
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